Plant Carbonic Anhydrases: Structures, Locations, Evolution, and Physiological Roles
نویسندگان
چکیده
منابع مشابه
Plant Carbonic Anhydrases: Structures, Locations, Evolution, and Physiological Roles
Carbonic anhydrases (CAs) are zinc metalloenzymes that catalyze the interconversion of CO2 and HCO3- and are ubiquitous in nature. Higher plants contain three evolutionarily distinct CA families, αCAs, βCAs, and γCAs, where each family is represented by multiple isoforms in all species. Alternative splicing of CA transcripts appears common; consequently, the number of functional CA isoforms in ...
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On the basis of polyacrylamide gradient gel electrophoresis of leaf extracts from 24 species of higher plants, two main forms of carbonic anhydrase (EC 4.2.1.1) were recognized; the "dicotyledon" type and the "monocotyledon" type. More than one band of enzyme was found on gels from most species, suggesting the possibility of carbonic anhydrase isoenzymes in higher plants.
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THE CONCEPT OF THE TRANSPORT METABOLON A metabolon has been defined as a “temporary, structural-functional, supramolecular complex of sequential metabolic enzymes and cellular structural elements, in which metabolites are passed from one active site to another without complete equilibration with the bulk cellular fluids” (Srere, 1985, 1987). This substrate channeling should decrease transit tim...
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ژورنال
عنوان ژورنال: Molecular Plant
سال: 2017
ISSN: 1674-2052
DOI: 10.1016/j.molp.2016.09.001